Adjustable Oblique Pens

The oblique pens are Derived from theremar's
nice
35-degree oblique pen, these pens have a 45 degree angle.
The lefty versions also have a 10-degree downward adjustment and twist.
Further, you can edit the angle in the .scad files for any angle you
want.

The straight pen is designed from scratch with a triangular grip, to
help you find the same holding angle again and again. Should fit
many nibs.